/*
 * Copyright 2008 Max Kugland
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.splink.resource {
	import org.splink.library.reflection.ClazzInspector;
	import org.splink.library.reflection.Variable;

	import flash.display.DisplayObject;

	/**
	 * @author Max Kugland
	 */
	internal class AssetRegistrar {
		/**
		 * AssetMapper inspects a given swf file and generates access to its visual contents in the 
		 * form of Asset objects.
		 */
		public function AssetRegistrar() {
		}

		/**
		 * Inspects the given <code>DisplayObject</code> for any public variables
		 * and creates for each a new <code>Asset</code> class which holds the asset's
		 * name and class 
		 * 
		 * @param swf the swf containing one or more assets, which will become accessible
		 * @return an array containing <code>Asset<code> objects
		 * @see org.splink.resource.Asset
		 */
		public function register(swf : DisplayObject) : Array {
			var assets : Array = new Array();
			
			var inspector : ClazzInspector = ClazzInspector.inspectClazzByInstance(swf);
			var vars : Array = inspector.variables;
			for each (var v : Variable in vars) {
				var AssetClass : Class = swf[v.name] as Class;
				assets.push(new Asset(v.name, AssetClass));
			}

			return assets;
		}
	}
}

